Amazon offers its Prime members the MEElectronics M9 Hi-Fi Sound-Isolating Headphones in Silver, model no. M9P-SL, for $8.48 with free shipping. (Non-members can spend $25 or more to qualify for free shipping; otherwise it adds $5.74.) That's tied with our mention from two weeks ago and the lowest total price we could find by $10. Sales tax is added where applicable. They feature a 20Hz to 20kHz frequency response, 3.5mm plug, and 4-foot cord.